21.A.126 Production inspection system

SI No. 588/2023

(a) The production inspection system required under point 21.A.125A(a) shall provide a means for determining that:

1.  incoming materials, and bought or subcontracted parts, used in the finished product are as specified in the applicable design data;

2.  incoming materials, and bought or subcontracted parts, are properly identified;

3.   processes, manufacturing techniques and methods of assembly affecting the quality and safety of the finished product are accomplished in accordance with specifications accepted by the CAA;

4.  design changes, including material substitutions, have been approved under Subpart D or E and controlled before being incorporated in the finished product.

(b) The production inspection system required by point 21.A.125A(a), shall also be such as to ensure that:

1.  parts in process are inspected for conformity with the applicable design data at points in production where accurate determinations can be made;

2.  materials subject to damage and deterioration are suitably stored and adequately protected;

3.  current design drawings are readily available to manufacturing and inspection personnel, and used when necessary;

4.  rejected materials and parts are segregated and identified in a manner that precludes installation in the finished product;

5.  materials and parts that are withheld because of deviations from design data or specifications, and that are to be considered for installation in the finished product, are subjected to an approved engineering and manufacturing review procedure. Those materials and parts determined by this procedure to be serviceable shall be properly identified and reinspected if rework or repair is necessary. Materials and parts rejected by this procedure shall be marked and disposed of to ensure that they are not incorporated in the final product.